Therapeutic lamp



Dec 27, 192? L654,3i3

. R. X TUTTLE THERAPEUTIC LAMP Filed Nqv. 27. 1926 INVENTOR Boy X. Tuftla ATTORNEYS Patented Dec. 27, 1927. r UNI TE. D ST A TE '5' P T O FF lC ROY x. TUTTLE, or BATTLE GREEK, MICHIGAN.

THERAPEUTIC LAMP.

Application; filed November 27, 1926'. Serial No. 151,157.

The main object, of this invention is to provide an improved therapeutic lamp for the production of infra red rays which is highly eflicient, durable and not likely to get out of repair,

A further object is to providea lamp haw ingthese advantages which is QQ Hparatively economical in structure.

@bjectsygpertainrng to details and econ omies of my invention will, definitely ap companying drawing forming a. part of this.

application, in which:

Fig. 1 is a side view of a lamp ;or generatoriembodying the features lQf my invention, parts'beiing shown in. vertical section.

Fig. 2 is a plan view of the-topmember.

Fig.7?) is. a horizontalsectionona line corresponding to line v3-3vof Fig. 1.

Referring to'the drawing, I provide a base casting 1 havinga central opening 2 therein shouldered at 3 to provide a seat forthe socket plug 4. This socket plug is of the standard type havinga metalshell 5, the central terminalfi', however, beinglonger than that commonly provided: I

The base has upwardly facingseats 7111aving heating or generating units comprising thescores 8 having coils: 9 wound thereon.

These cores of the coils are surrounded by tubes lO ly-ing in close proximity to the coils to be heatedtlaereb. The cores'ofthe tubes are preferably 0 lava.

Ihe upper ends of the heatingor. generat ing-elements are-supportedby the top member 11 which is also of metal, this top member having downwardly racingseats 12 receivingt-he upper ends of,tl1e.uni-ts. The parts are clamped together by the tie rod 13 which is arrangedthrough the top, plate and insulated therefrom, the insulationzbeing indicated at 14: and the lower end being threaded to engage the yokerlike coupling 15 which has threaded engagement with the post 6. This coupling is preferably yokeshapedas illustrated to provide resilience in the connection, thereby permitting the ex pension of the cores and tubes.

One of the resistanceelements ise-Iectrically connected to the baseibymeans ot' the screw 16 while theother ends of the resistance elements are electrically connected to the top plateby. means of the screws 17. The resistance element not grounded int-he baseis electrically connected to; the yoke by .means of the screw 18.

To prevent the; turning of the plug and:

also, to ground its; shell in the base, the base i3 M d i d-With aninnward y projecting lug 19 ar ying .SCreW 20, which engages the shell as indicated in: the, drawing,; the screw thereby serving a double c function. .u The wire guard 21 is mountedron thezbase to surround the heating or generating elements, protecting them; from injury and also, guarding against contact therewith.

Structures embodying my, improvements are highly efiicient in the production of in fra red rays and heat. The structure is econon iical to produce and very durable.

Havingthus-described invention What I clalln as new and desire to secure by Letters Patent is:

, 1. In a. device of the class described, the combination of, a metal base having a central opening therein with a downwardly facing shoulder and upwardly facing heatingunltseats, a top member otmetal having: downwardly facing heating unit seats, heating units comprising cores of lava having coils of resistance wire thereonandsurroundingtubes of lava disposed with their nd n sa d sea s sa d ba e. and top menaer ya o ke p ug sp sed, on sa d downward y f ci g hQulder in said c ntra opening of said base member and provided it a threade po co stitut ng a Con ac embe of h plug, said p ug having metal shelha tie rodien-gagedv-with said top memberand insulated therefrom,a resilient couplingyoke for said post and tie rod, said resistanceco-ils being electrically connected to said top plate and'one of themto said basepla te, the other beingconnected to said coupling yoke, alug on said base projecting into said opening thereof, a screw carried by said lug engaging the shell of the plug providing an electrical connection for the base-member thereto, and securing theplug against rotation, and aflg uard vmounted on said base.

2. In a device of theclass described, the combination of a metal base having a central opening therein with a downwardlyfacing shoulder and upwardly facing heating unitseats, a top member of n'letal having downwardly facing heating unit seats, heating units comprising cores of lava having coils of resistance wire thereon and surrounding tubes 01 lava disposed with their ends in said seats in said base and top members, a socket plug disposed on said down .vardly facing shoulder in said central open-- ing of said base member and provided with a threaded post constituting a contact mean her of the plug, said plug having a metal shell, a tie rod engaged with said top membe and insulated therettroiu, a resilient con-- pling yoke tor said post and tie rod, said resistance coils being electrically connected to said top plate and one of them to said base plate, the other being connected to said coupling yoke, a lug on said base projecting into said opening thereo't, a screw carried by said lug engaging the shell of the plug providing an electrical connection for the base member thereto, and securing the plug against rotation.

3. In a device of the class described, the combination of a metal base having a cen tral opening therein with a downwardly facing shoulder and upwardly facing heating unit seats, a top member ot metal having downwardly facing heatin unit seats, heating units comprising cm of lava having coils of resistance wire thereon and surrounding tubes out lava disposed with their ends in said seats in said base and top meta hers, a socket plug disposed on said downwardly facing shoulder in said centre]. opening 01'' said base member and provided with a. threaded post constituting a contact meta-- ber of the plug, said plug having a metal shell electrically connected t said base, a tie rod engaged with said top member and insulated therefrom, and resilient coupling yoke for said post and tie rod, said resist ance coils being electrically connected to said top plate and one of them in said base plate, the other being connected to said coin pling yoke.

4. In a device of the class described, the combination of a base member ha ving a cen tral opening therein with a downwardlytac ing shoulder and upwardly facing heating unit seats, a top member having downward ly facing heating unit seats, heating units comprising cores of lava having resistance elements thereon and. surrounding tubes oi lava d sposed with their ends in said seats in said base and to members, a socket pl ugdisposed on said dmvuwardly lacing shoulder in said central opening of said base niei'nher and provided with a central thrcaded post, a tie rod engaged with said ton member, and a resilient coupling yoke tor said post and tie rod.

5. In a device of the class described, the combination of a metal base having a downwardly facing socket plug seat. and upward ly tacing heating unit seats, a top member of metal having downwardly tacin heating unit seats, heating units c cores with resistc' rounding tubes of ear 1 at with their ends seat;-

and top members, a socket plcig disposed in said doi'vuwardly lacing seat in said base member and provided with a post constituting a contact member oi the plug, the plug having a n Etifl shell elect ically connected to said base, a tie rod engaged with said top member and insulated thereil'rom, and a. couplin orsaid st and tie rod, said resistance elements being electrically connected to said top plate and one ot them to said l' ase plate, the other being electrically connected to said socket plug post.

6. in a device of the class described, the combination of a base having a downwardly :tacin socket plug seat and upwardly lacing hea ng unit seats, a top member having downwardly facing heating unit seats, heat ing units comprising cores with resistance elemerds thereon and surrounding tubes ol earthy material disposed. with their ends in srid seals in said base and top members, a socket plug disposed in said downwardly lac ng seat in said base member and operatively connected to said resistance elements, and means connecting said. top plate and plug whereby the parts are secured in assembled relation.

'7. a device of the class described, the combination ot a base having a socket plug mounted thereon, said socket plug being provided with a metal shell electrically connect-- ed to said base, a top member, and heating units comprising cores with resistance elements thereon, said cores and resistance ele ments being surrounded by tubes, said cores and tubes being of lava, and one of said resistance eloment:-; being electrically connectcd to said base and the other in said socket plug terminal, said elements being wanectcd at their upper ends.

8. In a device ol the class described, the combination oi a base having a socket plug mounted thereon, said socket plug being pro-- vided with a metal shell grounded in said base. a top member, and heating units c0111 prisf 1g cores with resistance elements thereon, said cores and resistance elements being surrouruled by tubes and, one oi said. resistance elements being electr cally connected to said base and the other in said socket plug terminal, said elements being connected at their upper ends.

9. ln a device ot the class (lcscriliml, the combination ol a. base having a socket plug mounted thereon, a top member, heating units compris ng cores with refstance elements thereon. said cores and resistance elements being surrounded by tubular radiating clement sa'd cores and tubes being oi hi a, imans ior clai'uping said heating units between said top and base. andv a guard for said elements carried by said base.

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10. In a device of the class described, the combination of a base having a socket plug mounted thereon, a top member, heating units comprising cores with resistance elements thereon, said cores and resistance elements being surrounded by tubular radiating elements, said cores and tubes being of lava, and means for clamping said heating units between said top and base.

11. In a device of the class described, the combination of a metal base having a socket plug mounted thereon, said socket plug being provided with a metal shell grounded in said base, a metal top member, and heating units comprising cores With resistance elements thereon, said cores and resistance elements being surrounded by tubes, said elements being grounded at their upper ends in said top member, one of said resistance elements being grounded in said base and the other in a terminal of said socket plu In witness whereof I have hereunto set my hand,

ROY X. TUTTLE. 

